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Thermal Coefficient
Inside of the building's temperature can increase or reduce the snow weight. As these types of structures normally cover a wide area and heating or even turning the temperature to something higher than 0 degree needs a lot of energy and not cost effective, therefore thermal coefficient of 1/1 is being used.
As in most cases spatial structures are used outside the cities, such as sport centers and airports, a coefficient of 0.7 seems appropriate.
ANSI regulation, determines the ground snow weight in each area by dividing America into different areas. Bear in mind that we can use the top equation in Iran, if we use 0.7 Pg for the snow weight of flat surfaces in each four areas of the city. Therefore 150 kg/m2 is used for 0.7 Pg (19). therefore:
In these types cylinder roofs, as the gradient is variable, we can divide a arched roof into some slope surfaces and determine Cs coefficient for each part individually.
Relaxation losses in prestressing steels The relaxation losses in prestressing steels vary with type of steel, initial prestress, age, and temperature and, therefore, shall be
Exponential distribution - Poisson distribution function: Let X follow exponential distribution with parameter θ. Find the pdf of Y = X 1/β where β( ≥ 1 ) is a constant.
painting wood work
Each physical homogeneous type (solid, liquid orvapour) is a phase. Two or three phases may coexist. e.g. Ice and water at 0 o C. Mixtures of gases (e.g. Air) can only be
Define Underwater Magnetic Particle Testing? Underwater magnetic particle testing (UWMT) is a non-destructive testing suited for detection of surface cracks or discontinuities
what is plastic?its types and composition and its uses as engineering material
A credit card advertises a nominal rate of 18% compounded monthly. If no monthly payments are made, the effective annual interest rate is most nearly: The actual rate is, (18%
explain re inforced brick work?
Question In conditions of pumping performance, how have to engineers determined use of radial flow pumps and axial flow pumps ? Answer Exact speed is usually define
Q. Explain the Maximum spacing of piles? One of the factors which affect the distribution of loads from the structures to each pile is assumption of flexibility of the pile ca
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